Method for drum winding a web and a drum winder
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United States of America Patent
Stats
-
Mar 19, 1996
Grant Date -
N/A
app pub date -
Jun 16, 1994
filing date -
Jun 30, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for drum winding a web and a drum winder in which a roll that is being formed, i.e., onto which a web is being wound, is supported on winding drums. At least a part of the area that surrounds the roll being formed is subjected to a pressure lower than the pressure that prevails in a gap formed by the roll being formed and the winding drums, whereby a floating effect is produced on the roll being formed. The drum winder is preferably placed in a vacuum chamber.
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